Moses arose and Joshua his attendant with him, and Moses went up the mountain of God. Sometimes people camp out to get tickets to a show. Rashi says that for forty days, Joshua camped at the foot of the mountain and waited for his teacher. The Ibn Ezra assumes that he  missed the episode with the golden calf – he was not even aware that it had taken place. When we truly focus on that which is good and important, then nothing else can claim our attention.